<html>
<head>
</head>
<fieldset>
<legend>Insertar Rango</legend>
<form name="formulario" id="formulario" onsubmit="javascript: return false;">
<table>
    <tr>
        <td>Rango Inferior</td><td><input type="text" name="i_inferior"/></td>
        </tr><tr>
        <td>Rango Superior</td><td><input type="text" name="i_superior"/></td>
        </tr><tr>
        <td></td><td><a href="javascript:window.opener.document.location.reload();self.close()"> Guardar </a></td>
    </tr>
</table>
</form>
</fieldset>

</html>